Improvement in torsion-springs for vehicles



c. WrSALADEE.

Improvement in Tor-s io-n Springs.

N0.122,537 Pa tented ljan.9,'1872.,

CYRUS w. SALADEE, or sr. CATHARINES, CANADA.

IMPROVEMENT IN TORSION-SPRINGS FOR VEHICLES.

Specification forming part of Letters Patent No. 122,537, dated January 9, 1872.

SPECIFICATION. To all whom it mag concern:

Be it known that I, CYRUS W. SALADEE, of St. Oatharines, in the Dominion of Canada, have invented certain Improvements in Torsion-Springs for Wheeled Vehicles and other purposes, of which the following is a specification, referei1ce being had to the accompanying drawing and to the letters of reference marked thereon.

The nature of my invention consists in forming a torsion-spring from two straight pieces of round or square steel, and so arranged in workin g position that their inner ends shall be squared and firmly fitted into an intermediate iron block or standard, the latter being rigidly held in position, while the outer ends are allowed to vibrate freely in suit-able hearings or boxes; and on the extreme outer ends of these straight torsion-sprin gs are secured the cranks or arms through which the connection is et'-' fected between the springs and the frame or body they are to sustain. The object of my invention is to simplify and cheapen the manufacture of torsion-springs as now generally used.

In the drawing, Figure l is an elevation, showing the spring applied to the hind axle of a buggy. Fig. 2 is a plan of the same. Fig. 3 shows the form of one of the springs detached from the other parts, seen in Figs. 1 and 2. Fig. 4 is a detached View of the crank or lateral arm seen on the outer ends of the spring in Figs. 1 and 2.

A and A represent the two separate pieces of straight steel, which are connected at their inner ends by the intermediate box or standard B, the ends being squared and rigidly fitted into corresponding holes in the top of standard B, seen in Figs. 1 and 2. This standard B is placed in a position central, or nearly so, between the cranks A and is rigidly and firmly held to the axle G or any other base upon which the spring may be secured. The steel for the torsion-springs A and A is cut to equal lengths, (except in special cases, where one may be required to be longer than the other,) and the ends are finished, as seen by Fig. 3. The inner end is simply squared to fit into a corresponding hole in the intermediate standard B, as already shown and described, and the outer end is squared, as seen at 00, to

receive the lateral arm A and from that out, rounded, as seen at O, to receive the top to hold the arm in position. The size of the steel must, of course, vary to correspond with the weight designed to be sustained by the springs. D and D represent the outer standards or hearings, in which the outer ends of the springs A are allowed to vibrate freely, and which standards, like the central one, B, are firmly held in position by being clipped or otherwise rigidly secured to the axle or other base on which they are to be used. A and A represent the lateral arms or cranks which are made separate from the spring A, (see Fig. 4,) and secured to the outer ends of the springs, as already shown and described.

The lateral arms or cranks A are made of any pattern which the fancy may suggest, and may be made of wrought or malleable castiron; so likewise the standard-bearings B and D and D. The outer ends of these arms or cranks A are secured to the body they are to sustain in any convenient manner which circumstance may dictate in their application.

I will here state that the application and use of this modification of torsion-springs are so varied and unlimited that I do not confine my claim to their use for any single purpose, as they are equally applicable to pleasure vehicles, wagons of every kind and description,

railway cars, car seats, bedbottoms, easy chairs, and for any and every other use where springs are required. Neither do I limit my claim to the use of a single spring, as shown by Figs. 1 and 2, as I can place any required number of them in pairs or sets together upon one set of standards, B and D D, where heavy burdens are to be sustained by them, and with the outer ends of the lateral arms A so connected as to cause them to act together.

I claim as new and of my invention Forming torsion-springs of two straight pieces, with their inner ends firmly and rigidly held by the central standard-bearing B, and their outer ends allowed to vibrate freely in the standard-bearings D and D, substantially as and for the purpose shown and described.

CYRUS W. SALADEE.

\Vitnesses L. DOBBINS LILLIE L. SALADEE. (31) 

